8b58e81077
better parsing of sh commands (copied from jos sh) cat: read from 1 if no args sbrk system call, but untested getpid system call moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
30 lines
363 B
ArmAsm
30 lines
363 B
ArmAsm
#include "syscall.h"
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#include "traps.h"
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#define STUB(name) \
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.globl name; \
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name: \
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movl $SYS_ ## name, %eax; \
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int $T_SYSCALL; \
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ret
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STUB(fork)
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STUB(exit)
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STUB(wait)
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STUB(pipe)
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STUB(read)
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STUB(write)
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STUB(close)
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STUB(kill)
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STUB(exec)
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STUB(open)
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STUB(mknod)
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STUB(unlink)
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STUB(fstat)
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STUB(link)
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STUB(mkdir)
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STUB(chdir)
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STUB(dup)
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STUB(getpid)
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STUB(sbrk)
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